{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "699478544",
    "entityType": "User",
    "nonce": "0x245537b70e5ae99afc219d3411beca34041d1737d9f66ad4a37b4d30bbc49edd",
    "signature": "0x0a2f4b9ed44c5f0c407d563009420e407cfea703231c53631f5edef313a9e12131fd2c41378a14946773213744c7f4d80825795567752547eb0e5d8512e07e281c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}